Was Mercury bigger in the past? How did Venus change the way people saw the world? What is happening to Mount Everest, the highest place on Earth? Does Mars hav

You may think the Solar System consists of the sun and the eight planets that orbit around it. However, there are other things out there. There are comets, moon

Who created the word dinosaur? How big was an apatosaurus’ brain? What was strange about iguanodon’s hands and feet? Was spinosaurus bigger or smaller than

You may think the Solar System consists of the sun and the eight planets that orbit around it. However, there are other things out there. There are comets, moon

How much of America’s rainfall ends up in the Mississippi River? Which mountain range grew around the Danube River? Are there more kinds of fish in the Amazon